Rare black hole 1 billion times the mass of the sun could upend our understanding of galaxy formation - Livescience.com
- Rare black hole 1 billion times the mass of the sun could upend our understanding of galaxy formation Livescience.com
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- New discovery sheds light on very early supermassive black holes Phys.org
- Astronomers found a 'runaway' black hole as wide as 20 million suns BGR
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